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Calpalned

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## Homework Statement

If there were a planet three times farther from the sun than the Earth is, how long would it have taken this hypothetical planet to orbit the Sun? Assume the orbit is a circle.

## Homework Equations

Kepler's 3rd Law ##= (\frac{r_1}{r_2})^3 = (\frac{T_1}{T_2})^2 ##

## The Attempt at a Solution

##= (\frac{3r_E}{r_E})^3 = (\frac{T}{1})^2 ##

T = 3 years Correct answer: T = 5.2 years

Where is my blunder? Thank you all so much.